‘According to Space.com, Vitali Nevski and Artyom Novichonok of the International Scientific Optical Network (ISON) near Kislovodsk, Russia, discovered comet C/2012 S1 (ISON) on 21 September via images taken with a 40-centimeter reflecting telescope. The International Astronomical Union’s Minor Planet Center in Cambridge, Massachusetts confirmed the discovery and announced it on 24 September.’